Ethylene glycol is used as a protecting group for carbonyl groups in organic synthesis. Treating a ketone or aldehyde with ethylene glycol in the presence of an acid catalyst (e.g., p-toluenesulfonic acid; BF3â¢Et2O) gives the corresponding a 1,3-dioxolane, which is resistant to bases and other nucleophiles.
Charles Street and Beacon Hill in Historic Boston, Massachusetts. Shops on Charles Street are an eclectic mix of boutiques, galleries, jewelry stores and home accessory shops with plenty of nearby restaurants, inns and historic sites.
The Charles River Bikeway, also known as the Paul Dudley White Bike Path, extends from North Point Park in Cambridge and Nashua Street Park in Boston, along both sides of the river up to Watertown Square. From Watertown Square up to Newton the trail continues as the Upper Charles River Bikeway.